Self lubricating bearing



Nov. 1, 1932. J. M. BRYAN ET AL SELF LUBRIQATING BEARING Fvled Aug. 5, A1.931 2 Sheds-Sheet 1 Q 8 k QN my a S N mmmwwmh mh, N5 l Alfil llaLll \%N W @i www, L NM, @J am Nov.A 1, 1932. J. M. BRYAN ET Al. v1,885,586

SELF LUBRICATING BEARING Filed Aug. s, 1951 2 sheets-sheet 2 amante/to,

Patented Nov. I, 1932 JOSEPH MQBRYAN AND BIRINAY SMARTT, 0F INDIANAPOLIS, INDIANA -J SELF'LUBRICATING BEARING Application led August 5, 1931.

Our present invention relates to journal bearings of the generalitype disclosed and set forth in our application for patent for selflubricating bearings, Serial N o. 514641, filed February 9, 1931.

In the above mentioned application, provision was made Within the vjournal-box for constantly lubricating it while it is in motion, this being accomplished by means of a self- 3-3 contained and directly connected rotary pump. y Our present invention, however, may be used in connection with the above mentioned application or it may be used separately therefrom, as desired.` One of the 25 principal objects of our invention resides in an extremely simple and highly effective device which will efl'ectually lubricate the bearing with" a minimum amount of oil, this device being associated with means for prevent- 2o ing entrance of dust or gritty matter from the exterior of the journal-box.

A further. object of our invention aims to provide a device foraccomplishing the above purpose, which may be readily secured in its 25 proper position within a journal-box ofthe usual construction.r

Theinvention, therefore, maybe said to contemplate the provision, in the journalbearing, of an attachment for entirely eX- Sozcluding allV dust and foreign matter from entry into the journal-bearing and, at the same time, for yieldingly supporting the oil- .pan, whereby the minimum amount ofA oil may be used for thoroughly lubricating the shaft within its bearing. v

In the drawings, in which the same reference characters refer to the same parts throughout, preferred embodiments of my invention are illustrated. y

Figure 1 ispa longitudinal sectional view taken through a journal-bearing, illustrating our attachmentl in its operative position;

Figure 2 is a transverse-sectional view taken on the line2-2 of Figure 1, the axle and the S casing of the journal-bearing being removed for the salie of clearness; 4

Figure 3 is a top plan view thereof;

Figure L.l''is a fragmentary view, slightly enlarged, of Figure 2, looking in the direction 50 of the arrow indicated'as 4;

Serial No. 555,314.

Figure 5 is a view in perspective of one of the details associated with our invention; and

Figure 6 is a top plan view of the voil-pan.

Our invention, in the form or embodiment shown in the drawings and briefl described, 5g comprises a casing or housing o a journalbearing 10, a dust-proof guard shown gen- A.erally at 11, and the oil-pan 12, associated therewith.

Referring particularly to figures from 1 to a0 5, the dust-proof guard 11 lconsists of upper and lower late members 13 and 14, which are adapted) to be -yieldingly supported in their operative vposition with respect to the casing of the jourhal-bearing 10, and held e5 against accidental displacement therein. The means for preventing the displacement of this guard 11 may be described as a pair of flan es 15 and 16, which are integrally formed with one end of the casing of the journal-bearing 70 10, providing therebetween a'recess 17, within which the guard is supported. Y

A pair of pins 18-may be threaded into the channel or groove 17 and are adapted to align with a pair of vertically extending openl5 ings 19, formed through the lower edge of the bottom section 14 of the guard 11. A coil spring 20 is mounted upon each pin 18, and is adapted to extend within theopening 19, for yieldingly supporting the guard 11. The up- 80 per end of the guard is likewise provided with a pair of'openings 21, for' the purpose of receiving the springs 22, which are in turn properly supported by means of the pins or rivets 23, which are supported by the cover plate 24. Each of the side edges of' both of the sections 13 and 14,' is provided with a channel 2,5, Y. Y extending its entire length, for the purpose of supporting the felt strip or packing 26, which is adapted to be engaged by the walls of the lateral portions of groove 17 thereby preventing entrance of dust or other foreign matter between these contacting surfaces. Each of the sections 13 and 14, in their respective lowerv 95 central portions, is provided with a semi-cir- A cular opening 27 slightly larger in diameter than the axle or shaft 28. An annular groove or recess 29 is formed adjacent each opening 27, for the 'purpose of receiving the felt or y 1m y collection of dust thereon.

packing 30, which is, of course, adapted to contact with a rotating shaft or axle 28. It will now be appreciated that guard 11, although not coming in direct contact with the axle 28, is yieldingly supported with respect thereto, by means of the flanges 15 and 16, and the respective coil springs 20 and 22, there being sufficient clearance or play between the dust guard and the groove 17 to permit any sidewise movement, due to wear of the bearing-block 32, with respect to this axle or shaft 28.

We will nowdescribe the novel means associated with our invention for deflecting the course of oil which has been carried around the axle 28, away from the packing or feltring 30, thereby preventing,r saturation and the The upper edge of the opening 27 in section 13 is cut away, shown at 33, for the purpose of receiving the deiectors or blades 34, which are, in turn; supported from their vertically extending shafts 35, mounted for oscillation within the openings 36. The portions of the openings 36 are counter-bored, as shown at 37, for the purpose of receiving the expansion coil springs 38, which are adapted to be supported between the upper edge of the counter-bored openings and the upper face of each of the blades or deflectors 34, for a purpose which will be readily obvious.

The upper edge of the section 13, is provided with a pair of substantially similarly formed depressions 40, for the purpose of retaining the headed members 41 in various positions. These headed members 41 are each rigidly secured to the upper end of their respective shafts 35, so that-they may be turned Yinto or o ut of the operative postion of the delectors 34 with respect to the axle 28.

The lower edge of each of the deflectors 34 is formed arcuate and of the same contour as the axle 28 upon which the deflectors are adapted to rest when. in their operative position.

A second set of'depressions 42, greater in depth than the depressions 40, are provided adjacent depressions 40, for the purpose of permitting the headed members 41 'to enter therein, so as to permit the deectors or blades 34 to yieldingly bear against the axle 28.

. A pair of angularly disposed slots or `grooves 44are upwardly extended beyond the cut-out portion 33, they being slightly wider than the width of the deflector blades 34, so

thatvthese blades may enter ltheir respective grooves 44 when it is desired to raise them out of their operative position. The headed member 41 will, of course, rest upon the ledge or surface 45, formed between both of the depressions 40 and 42, when it is desired to hold the deiectors 30 and 34 in their elevated position, out of engagement with the axle 28. In Figure 2'fof the accompanying drawings, We

tion of oil or grease at the upper ends of the axle by means of deectors, we will now describe the oil-pan and the support therefor, whereby the axle may be completely lubricated with but a small amount of lubricant. y

The oil-pan 12 is preferably formed semi-circularly and of a radius slightly greater than of the axle 28, so that it may contain but .a relatively small amount of lubricant. This oil-pan is preferably formed of relatively thin sheet metal and comprises the shell 46, and a air of inwardly extending, semi-circular anges 47, which are adapted to be slightly spaced from the'axle 28. The semicircular flanges 48, of the same substantial shape as the flanges 47, are integrally formed in the oil-pan 12; and are located suiiiciently close to the outer flan es 47, which will permit the reception o the felt packing 49 therebetween. This packing, it will be readil understood by reference to Figure 1, is adapted to bear against the underside of the axle 28, for the purpose of effectually preventing the escape of oil to the outer side thereof. A longitudinal trouo'h 50 is provided in the substantial center of preferably formed of a pair of parallel strips 51, which are secured to the oil-pan at the adjacent flanges 48. Each of these parallel edges 51 is provided with a plurality of open- .ings 52, located in the lower sides thereof,

for the purpose of permitting the oil or the lubricant to enter the trough 50 from the oil pan. An elongated roller 53, formed of any desired material, is loosely mounted to rotate within the trough 50, and is adapted, during operation, to be turned from the axle 28 it -beingheld in its elevated or buoyant position by reason of its floating upon the surface of its lubricant. preciated, will assure the deposit upon t e axle 28 of a comparatively thin film of oil uniformly spread upon the entire length thereof. It may be here stated that the oilpan is of the same substantial length as the bearing block 32, thereby assuring the deposit of the lubricant upon its entire bearing surface.

Our novel means for yieldingly supporting the oil-pan 12, a ainst the axle 28, whereby it will eifectually unction at all times despite the usual shocks and jars incidental to journal-bearings of this nature, may be briefly described as follows:

A lug or ear 55 is secured to each side of lthe oil-pan 12, in the substantial middle thereof; each is provided with an o ening for receiving the lower end of the link 56,

the oil pan 12, and is This roller 53, it will be a which is, in turn, votally mounted, as `shown at 57 to the ree end of the arm 58. Each of the arms 58, it will be noted, is plvo otally mounted to a transversely extending rod 59, which may be supported from the Iside Walls of the casing for the journal-bearing in any desired manneg. A second rod 60 is likewise secured to the Journal-bearing for the purpose of supporting a pair of downwardly extending contraction coil sprin s 61. 'The lower end of each spring, it Wil be noted, is connected by a hook or the like to this pivotall)7 mounted arm 58.

The invention is not intendedto be neces- Isarily restricted to the particular constructions and arrangements of parts, nor to the particular applications of such constructions, herein shown and described, as the Same may be modified in various particulars or be applied in many varied relations Without de- 4`parting from the spirit and scope of the invention, practical embodiments herein illustrated and described attempting vmerely to "show some of the various forms and modifications in which the invention might be embodied.

What We claim is: h

journal-bearing comprising a casing, a shaft rotatably mounted therein, a substantially rectangular oil-pan extending length- Wise with respect to said shaft, a pair of parallel strips secured to the oil-pan providing a trough therefor, a roller loosely mounted in the trough and disposed between said y shaft and the oil-pan, a pair of pivotall mounted arms exibly connected to said 0i pan, and a pair of coil springs interposed betweenl the casing and said arms for supporting the pan resiliently against said shaft.

In witness thereof We have signed this specification. l

JOSEPH M. BRYAN.

BRIN AY SMARTT. 

